Database Users

[Q] Battery drain 4.3

Hi
I know there has been some topics on this, but no answer.
My N7 has ever since the 4.3 update eaten the battery like it was candy. After 6-8 hour, with no actually use at all, it can go from 100% to 40% and if i look in battery usage, it says that android system has used over 80%.
Its like the system dosent go into sleep mode. I can se when i am at work that the tablet connects to skype several times during my worktime, and its just lying on my table in sleepmode?
It also takes forever to charge with stock charger.
None of the above things happend before android 4.3
Hope anyone has an idea
Brian
PS: If i go to recovery mode and resets the system, will it then use the android version the tablet was born with or 4.3?

BrianMarkussen said:
Hi
I know there has been some topics on this, but no answer.
My N7 has ever since the 4.3 update eaten the battery like it was candy. After 6-8 hour, with no actually use at all, it can go from 100% to 40% and if i look in battery usage, it says that android system has used over 80%.
Its like the system dosent go into sleep mode. I can se when i am at work that the tablet connects to skype several times during my worktime, and its just lying on my table in sleepmode?
It also takes forever to charge with stock charger.
None of the above things happend before android 4.3
Hope anyone has an idea
Brian
PS: If i go to recovery mode and resets the system, will it then use the android version the tablet was born with or 4.3?
Click to expand...
Click to collapse
I have also noticed that when I leave it asleep and don't use it for a good amount of time, the battery will drop by about 10-15 percent
Sent from my SGH-M919 using xda app-developers app

Android OS Wakelock killing the battery!

Hey guys,
I've been having an S6 Edge+ for a couple of days already but there seems to be an issue with the ROM. I'm getting a lot of battery drain from the "Android OS" and I'm losing up to 5% - 7% per hour in standby.... I have even re-flashed the entire ROM and factory reset two times... still the same.
I've disabled Google's Location History and Google Now but this did not help...
My previous Galaxy S6 was also running the latest ROM but there were no such problems...
Has anybody else experienced such an issue and do you have any ideas?

OrionBG said:
Hey guys,
I've been having an S6 Edge+ for a couple of days already but there seems to be an issue with the ROM. I'm getting a lot of battery drain from the "Android OS" and I'm losing up to 5% - 7% per hour in standby.... I have even re-flashed the entire ROM and factory reset two times... still the same.
I've disabled Google's Location History and Google Now but this did not help...
My previous Galaxy S6 was also running the latest ROM but there were no such problems...
Has anybody else experienced such an issue and do you have any ideas?
Click to expand...
Click to collapse
Check if any sync is stuck in loop, sometimes this kills battery very easily. If all else fails check with some app like GSam.

Lucky8890 said:
Check if any sync is stuck in loop, sometimes this kills battery very easily. If all else fails check with some app like GSam.
Click to expand...
Click to collapse
Unfortunately GSam does not produce too detailed information without Root access and it only says Android System and lists all the services that are under it...
The interesting part is that after several re-flashes with the same firmware, the wakelock disappeared...
Now I get 76% to 80% deep sleep...
Go figure... Probably some stuck sync as you mentioned...

OrionBG said:
Unfortunately GSam does not produce too detailed information without Root access and it only says Android System and lists all the services that are under it...
The interesting part is that after several re-flashes with the same firmware, the wakelock disappeared...
Now I get 76% to 80% deep sleep...
Go figure... Probably some stuck sync as you mentioned...
Click to expand...
Click to collapse
Ah great... I also had similar issue previously with Calendar sync, couple of flashes and it went. Now happily rooted

Android OS Wakelock killing the battery! ...... solved
OK, im not too savvy with settings and systems, just sharing what i have been through. I too had a major battery drain problem on my S6 Edge+ , giving me abt 8-10hrs of use after a full charge. Even during the nights with everything off and power saving enabled i would lose abt 50-60% battery over 8 hours. ..... caused by Android OS ....... it would keep the screen awake for hours even with the screen off .... ( dont know how that worked) ..... tried a factory reset but didnt help. Then rooted the phone and downloaded wakelock detector and installed it as a system app. Installed greenify and doze ..... last night lost 4% over 11hours with wifi and 4g off and power saving enabled which is a drastic improvement. Facing one little problem that images do not get downloaded (automatically or manually) in whatsapp with wifi in use. Will use the cell for a few days and post again abt how the battery is holding up and if there is any other performance issues.

If you want to save battery, try this app:
https://play.google.com/store/apps/details?id=com.kunkunsoft.packagedisabler
It show all RAM usage of each app, you can disable any app in Bloatware (samsung default app) list to save power
This app run WITHOUT ROOT

new phone, android os battery drain

hello
i got a new s6 edge + yesterday
did a factory reset,then installed 3 updates that came
and started installing my apps and put my stuff
i noticed the phone is a little 2 warm,and battery drains 2 fast!
this morning at 9:00 AM the phone was at 100%, and the battery lasted 5/6 hours. sot was under 1 hour
did again a full charge and installed gsam battery monitor
and android os is at 31/35%
i cant even talk at the phone,it gets hot...
battery drains even if i dont use the phone and keep it in my pocket!
i only have installed whatsapp and use gmail with 30 min peek
please tell me what is this ? how can i fix this ?

ssj3g0ku said:
hello
i got a new s6 edge + yesterday
did a factory reset,then installed 3 updates that came
and started installing my apps and put my stuff
i noticed the phone is a little 2 warm,and battery drains 2 fast!
this morning at 9:00 AM the phone was at 100%, and the battery lasted 5/6 hours. sot was under 1 hour
did again a full charge and installed gsam battery monitor
and android os is at 31/35%
i cant even talk at the phone,it gets hot...
battery drains even if i dont use the phone and keep it in my pocket!
i only have installed whatsapp and use gmail with 30 min peek
please tell me what is this ? how can i fix this ?
Click to expand...
Click to collapse
This could be any amount of things but I would start by doing another factory reset. Possibly one of the updates is the cause and a reset after updating might help. If not I would suggest returning it for an exchange if possible.

saxobully said:
This could be any amount of things but I would start by doing another factory reset. Possibly one of the updates is the cause and a reset after updating might help. If not I would suggest returning it for an exchange if possible.
Click to expand...
Click to collapse
flashed with other rom 6.0.1
now android os is at 6%
is this okay ?

ssj3g0ku said:
flashed with other rom 6.0.1
now android os is at 6%
is this okay ?
Click to expand...
Click to collapse
Is this 6% after a full day?

saxobully said:
Is this 6% after a full day?
Click to expand...
Click to collapse
3h 53m sine last unplugged
android system
8.1% power used
17m cpu minutes used
kernel
5.8% power used
11m cpu minutes used

yesterday android os was at 100% ... it drained my battery very quick
so i decided to flash a kernel
and here are my results after flashing a new kernel and most of the time phone was doing nothing
is this normal ?
(im thinking to flash a custom rom or downgrade to lolipop)

did a full charge and let the phone sit with 4g disabled (only 2g/3g),i did 3 times reply some emails and thats it.
is this okay ? please i need some advices

Probably you're rooted. Apply kernel deep sleep fix from our dev subforums.

MoHuToP said:
Probably you're rooted. Apply kernel deep sleep fix from our dev subforums.
Click to expand...
Click to collapse
no,im not rooted
but ill try,
thank you

ssj3g0ku said:
yesterday android os was at 100% ... it drained my battery very quick
so i decided to flash a kernel
and here are my results after flashing a new kernel and most of the time phone was doing nothing
is this normal ?
(im thinking to flash a custom rom or downgrade to lolipop)
Click to expand...
Click to collapse
That 17 hours is very good seems to be working normal. I get roughly 14 hours of heavy usage on mine

Note 4 Fast Battery Drain

Hi,
Not sure if this is in the right section so admin please feel free to move.
Ive googled my problem and had a bit of a read but dont really get any solutions.
Ive noticed a serious battery drain since upgrading to 6.0.1 - maybe it happened on the previous version however ive just seemed to have noticed it more since i did the update.
My battery doesnt last very long. It will show 100% in the morning. If i dont use it, it can go down to about 80% within an hour or so. If i do use it then im using apps like gmail, whatsapp / sms, short phone calls, some other apps but im not on them for very long. I normally close all apps that are running in the background.
This morning it was 100%, ive used it as described above and its on 57% and its not even dinner time yet...
Ive checked the battery usage and top of the list is " Cell standby" with 48% usage showing power used is 1530mah - which is alot. The next is "my data manager" (an app to manage data usage) showing power used is 485mah (alot less!). Ive attached a screen shot.
Ive also noticed that once the battery gets to around 30% it drains even faster. I find myself using power saving mode when it gets to about 20%. It still seems to drain at a similar rate. Maybe slightly slower.
Any ideas on what i can do to recover battery time without buying a new battery. There seems to be a few topics online relating to battery drain when updating to the latest android version.
Thanks

Dowsett said:
Hi,
Not sure if this is in the right section so admin please feel free to move.
Ive googled my problem and had a bit of a read but dont really get any solutions.
Ive noticed a serious battery drain since upgrading to 6.0.1 - maybe it happened on the previous version however ive just seemed to have noticed it more since i did the update.
My battery doesnt last very long. It will show 100% in the morning. If i dont use it, it can go down to about 80% within an hour or so. If i do use it then im using apps like gmail, whatsapp / sms, short phone calls, some other apps but im not on them for very long. I normally close all apps that are running in the background.
This morning it was 100%, ive used it as described above and its on 57% and its not even dinner time yet...
Ive checked the battery usage and top of the list is " Cell standby" with 48% usage showing power used is 1530mah - which is alot. The next is "my data manager" (an app to manage data usage) showing power used is 485mah (alot less!). Ive attached a screen shot.
Ive also noticed that once the battery gets to around 30% it drains even faster. I find myself using power saving mode when it gets to about 20%. It still seems to drain at a similar rate. Maybe slightly slower.
Any ideas on what i can do to recover battery time without buying a new battery. There seems to be a few topics online relating to battery drain when updating to the latest android version.
Thanks
Click to expand...
Click to collapse
Factory reset might help a lot.

Dont really wanna have to do a factory reset if i can help it.
I forgot to mention i also cleared the cache in boot mode

Dowsett said:
Dont really wanna have to do a factory reset if i can help it.
I forgot to mention i also cleared the cache in boot mode
Click to expand...
Click to collapse
I had same battery drain issues when i updated from lollipop to Marshmallow but after doing factory reset everything is better then lollipop and doze feature in 6.0.1 works very well. I leave my phone at night about 9 hours and not drain even 2% battery and i got 5 hours scrern on time .
try factory reset+wipe cache from recovery and use atleast 3 days to doze feature work properly.if you have same drain issue then it's a bad battery.this is the only solution so far.

Battery pull?
Sent from my LG-H918 using Tapatalk

android system eating up my battery

This problem started a few days ago randomly. I never installed a new app or changed any settings. Started out while I was on a custom ROM. I tried another ROM and same thing. Tried fully erasing everything my phone and still no luck. Fully unrooted and went back to complete stock and Android system is still eating away. When I went back to stock I started the phone as new. Did not restore any apps. This is very frustrating cause it started out of nowhere and it doesn't want to go away no matter what I do. My phone is dying halfway through my day with Android system having double the % that my screen on time has

Thankzz.
Sent from my CAM-L21 using Tapatalk

note3userr said:
This problem started a few days ago randomly. I never installed a new app or changed any settings. Started out while I was on a custom ROM. I tried another ROM and same thing. Tried fully erasing everything my phone and still no luck. Fully unrooted and went back to complete stock and Android system is still eating away. When I went back to stock I started the phone as new. Did not restore any apps. This is very frustrating cause it started out of nowhere and it doesn't want to go away no matter what I do. My phone is dying halfway through my day with Android system having double the % that my screen on time has
Click to expand...
Click to collapse
Go into settings/accounts and see if anything is having a problem syncing. You should also turn off Bluetooth and set location to battery saving if you aren't using Bluetooth devices or GPS. Which build of Android are you using? Is the high battery drain when the phone is idle? In use? Both? Presumably you wiped the system cache after going back to stock?

jhs39 said:
Go into settings/accounts and see if anything is having a problem syncing. You should also turn off Bluetooth and set location to battery saving if you aren't using Bluetooth devices or GPS. Which build of Android are you using? Is the high battery drain when the phone is idle? In use? Both? Presumably you wiped the system cache after going back to stock?
Click to expand...
Click to collapse
Accounts are all synced good. I have wifi and Bluetooth scanning off. Location is on battery saving. And I'm on latest vendor 7.1.1 and usually it's when I'm using the phone. Idle drains some too but not that much of a difference.

note3userr said:
Accounts are all synced good. I have wifi and Bluetooth scanning off. Location is on battery saving. And I'm on latest vendor 7.1.1 and usually it's when I'm using the phone. Idle drains some too but not that much of a difference.
Click to expand...
Click to collapse
Did you wipe the system cache? The only obvious thing that might drain your phone when in use is having the screen brightness set very high, but that shouldn't make a huge difference. You said the problem began when you were on a custom ROM but now you are fully stock? That's odd. Poor network connection can also cause high battery drain. I think if you reset your network settings it will force your phone to look for the closest available cell tower. Do you have GSM or CDMA service?

note3userr said:
This problem started a few days ago randomly. I never installed a new app or changed any settings. Started out while I was on a custom ROM. I tried another ROM and same thing. Tried fully erasing everything my phone and still no luck. Fully unrooted and went back to complete stock and Android system is still eating away. When I went back to stock I started the phone as new. Did not restore any apps. This is very frustrating cause it started out of nowhere and it doesn't want to go away no matter what I do. My phone is dying halfway through my day with Android system having double the % that my screen on time has
Click to expand...
Click to collapse
When battery is run down, what is displayed under battery>>android system>>use details? Please paste those details here. Are you in an area of extremely poor LTE signal? Have you ever used Better Battery Stats? Install it and run it for a full battery cycle. Your problem will likely be solved by a factory reset from the stock recovery.

jhs39 said:
Did you wipe the system cache? The only obvious thing that might drain your phone when in use is having the screen brightness set very high, but that shouldn't make a huge difference. You said the problem began when you were on a custom ROM but now you are fully stock? That's odd. Poor network connection can also cause high battery drain. I think if you reset your network settings it will force your phone to look for the closest available cell tower. Do you have GSM or CDMA service?
Click to expand...
Click to collapse
Wouldn't high screen brightness go under the screen category and not Android system? I will reset my network settings and see if it makes a difference. I would assume flashing back to stop and erasing all data on the phone would do that and wipe all system cache as well.
v12xke said:
When battery is run down, what is displayed under battery>>android system>>use details? Please paste those details here. Are you in an area of extremely poor LTE signal? Have you ever used Better Battery Stats? Install it and run it for a full battery cycle. Your problem will likely be solved by a factory reset from the stock recovery.
Click to expand...
Click to collapse
I have BBS installed but without root I don't think it's much help? I will post screenshots when my battery goes down to about 15%

Some people have reported that the following works, although I don't understand why it would. Go into settings/battery/battery optimization/all apps/reset app preferences.
A factory reset shouldn't be necessary if you did a completely clean stock install but it also couldn't hurt.

note3userr said:
I have BBS installed but without root I don't think it's much help? I will post screenshots when my battery goes down to about 15%
Click to expand...
Click to collapse
Again, your problem will likely be solved by a factory reset from the stock recovery.
Weren't you running BBS when you were rooted and running multiple custom roms? Why not re-root now and use BBS or GSam?

v12xke said:
Again, your problem will likely be solved by a factory reset from the stock recovery.
Weren't you running BBS when you were rooted and running multiple custom roms? Why not re-root now and use BBS or GSam?
Click to expand...
Click to collapse
I never use root even with custom Roms. I feel like I have no need for it. I did what was mentioned earlier and reset my network settings and also I disabled chrome and started using a different browser and so far Android system is the same percentage as screen. Not good but way better than before. BSS is also showing 2 hours "awake (screen off)" which is kinda alarming

note3userr said:
I never use root even with custom Roms. I feel like I have no need for it. I did what was mentioned earlier and reset my network settings and also I disabled chrome and started using a different browser and so far Android system is the same percentage as screen. Not good but way better than before. BSS is also showing 2 hours "awake (screen off)" which is kinda alarming
Click to expand...
Click to collapse
You didn't see anything odd when you went into accounts and looked at syncing? For Google you clicked on the account and looked at each individual thing that gets synced under Google? If you were rooted you could try the Naptime app. I hated it but it has many fans. Basically it puts your phone in an extreme Doze state when you aren't using it, which might fix your problem. But if you want anything to work with the screen off you have to exempt it from Doze. Screen off in Naptime kills pretty much everything.

Same here. Everything stock. Just checked accounts settings and everything is good.
right now my top 5 is:
Screen 13% (2h:52min SOT)
Android System 10%
Android OS 9%
Facebook 8%
WhatsApp 5%
and in overall I've been around 40 min on Facebook, and you know that this **** consumes a lot, so go figure out how the hell is Android System and OS above it.

yzT said:
Same here. Everything stock. Just checked accounts settings and everything is good.
right now my top 5 is:
Screen 13% (2h:52min SOT)
Android System 10%
Android OS 9%
Facebook 8%
WhatsApp 5%
and in overall I've been around 40 min on Facebook, and you know that this **** consumes a lot, so go figure out how the hell is Android System and OS above it.
Click to expand...
Click to collapse
They are components shared by applications so that's rather normal to have them high.
I don't care about Android architecture much so only look at my SOT (which is nominal).
Those interested in why system and OS are high, should read the battery stats source code to see what's grouped under these and how it's being calculated.

I locked my bootloader last night and did a factory reset from settings. Right now Android system is at 5% and screen at 4%
I'm about to completely just give up

note3userr said:
I locked my bootloader last night and did a factory reset from settings. Right now Android system is at 5% and screen at 4% I'm about to completely just give up
Click to expand...
Click to collapse
Android System tally is the sum total of a number of components. That it is "high" is not necessarily a big deal. The real question is: what are each of those components using? When your battery is run down, what is displayed under battery>>android system>>use details? Those usage details may help you find a problem if you even have one. Short of rooting and running a dedicated battery usage/wakelock app, these details may be the best you will get.

Decided to run purenexus and exkernel with root to get better stats. Battery is a little better but still not even close to how it used to be. Here are screenshots of everything . Woke up with 100% around 5:30 am. Went to work and the gym and wat he'd some YouTube.

The only way I found to fix this issue was to implement aggressive doze as soon as screen is off.
If you're on MM this can be done using apps like ForceDoze
And on Nougat using NapTime
Furthermore , I also implemented ElementalX kernel with Hawktail governor.
Since these changes my Screen is on top of the list in battery and maximizes my screen on time. Nothing else works for me.
The phone tends to stay awake needlessly without all these tweaks.

=note3userr;70379330]Decided to run purenexus and exkernel with root to get better stats. Battery is a little better but still not even close to how it used to be. Here are screenshots of everything . Woke up with 100% around 5:30 am. Went to work and the gym and wat he'd some YouTube.[/QUOTE
I really don't see anything wrong here, except awake time and maybe SOT. 4 hours SOT is very good for stock and you are at what 3.3 hours? I use the Hawk Tail governor profile in EX as well and it gives me just a small amount of improvement over stock settings. I use the stock rom, rooted with EX and get 4-5 hours SOT.
Click to expand...
Click to collapse

note3userr said:
Decided to run purenexus and exkernel with root to get better stats. Battery is a little better but still not even close to how it used to be. Here are screenshots of everything . Woke up with 100% around 5:30 am. Went to work and the gym and wat he'd some YouTube.
Click to expand...
Click to collapse
I think the 2 hours awake screen off is normal unless you use an App like Naptime to put your phone in Doze as soon as the screen is off. If you are really concerned with idle battery life you might want to try Naptime, but you may need to play with the settings so the phone works like you want, Naptime by default turns off everything that isn't excluded from Doze when the screen goes off. That includes music players and the fingerprint sensor.